Paper Feed; Feed; Tray Lift - Ricoh B234 Service Manual

DETAILS

2.2 PAPER FEED

[F]
[G]
[A]
[D]
[C]
[H]
[E]
[B]
B833D003.WMF

Feed

The bypass tray can hold 500 sheets of standard weight paper.
The bypass tray uses the standard FRR (Feed and Reverse Roller) feed system.
Handling Paper> Paper Feed Methods> Forward and Reverse Roller
(FRR)
When the job starts, the feed motor [A] switches on and rotates the pick-up roller
[B]. At the same time, the pick-up solenoid [not shown] switches on and lowers the
pick-up roller. The lift motor [C] switches on to raise the stack until the top of the
stack reaches the correct feed level. At that time, the paper pushes the pick-up
roller down. When the actuator [not shown] goes out of the lift sensor [not shown],
the lift motor stops.
The pick-up roller picks up and feeds the first sheet to the feed roller [D] and
separation roller [E]. When the feed sensor [not shown] detects the leading edge of
the sheet, the pick-up solenoid raises the pick-up roller and the feed roller feeds
the sheet.
NOTE: Unlike the separation rollers in the LCT, the separation roller always
remains in contact with the feed roller above.
The transport motor [F] then feeds the paper into the bypass tray, and the relay
motor [G] feeds the paper out of the bypass tray, and into the machine through the
LCT.

Tray Lift

When the pick-up roller [B] lowers far enough to go into the lift sensor, the lift motor
switches on to raise the bottom plate until the actuator goes out of the lift sensor
again and switches off the lift motor. This movement is repeated to maintain the
correct height of the stack for paper feed.
Actuator [H] is used by the height sensors, to detect the amount of remaining paper.
SM 13 B833